// TODO: Why this method is not async?
private Task <bool> RunIndexJobAsync(string currentUserName, string notificationId, bool suppressInsignificantNotifications,
IEnumerable <IndexingOptions> allOptions, Func <IndexingOptions, ICancellationToken, Task> indexationFunc,
IJobCancellationToken cancellationToken)
{
var success = false;
// Reset progress handler to initial state
_progressHandler.Start(currentUserName, notificationId, suppressInsignificantNotifications);
// Make sure only one indexation job can run in the cluster.
// CAUTION: locking mechanism assumes single threaded execution.
try
{
using (JobStorage.Current.GetConnection().AcquireDistributedLock("IndexationJob", TimeSpan.Zero))
{
// Begin indexation
try
{
foreach (var options in allOptions)
{
indexationFunc(options, new JobCancellationTokenWrapper(cancellationToken)).Wait();
}
success = true;
}
catch (OperationCanceledException)
{
_progressHandler.Cancel();
}
catch (Exception ex)
{
_progressHandler.Exception(ex);
}
}
}
catch
{
// TODO: Check wait in calling method
_progressHandler.AlreadyInProgress();
}
return(Task.FromResult(success));
}
private async Task IndexAsync(string currentUserName, string notificationId, bool suppressInsignificantNotifications, IEnumerable <IndexingOptions> allOptions, Func <IndexingOptions, CancellationToken, Task> indexationFunc)
{
// Reset progress handler to initial state
_progressHandler.Start(currentUserName, notificationId, suppressInsignificantNotifications);
// Capture the syncronization object (cancelation token source) if it is not captured already.
var cancellationTokenSource = StartIndexation();
if (cancellationTokenSource == null)
{
// Report error and exit
_progressHandler.AlreadyInProgress();
}
else
{
// Begin indexation
try
{
foreach (var options in allOptions)
{
await indexationFunc(options, cancellationTokenSource.Token);
}
}
catch (OperationCanceledException)
{
_progressHandler.Cancel();
}
catch (Exception ex)
{
_progressHandler.Exception(ex);
}
finally
{
// Report indexation summary
_progressHandler.Finish();
// Release the syncronization object
FinishIndexation();
}
}
}